Simulation Analysis and Experimental Verification of High-Speed Train Electromagnetic Disturbance

Abstract

Electromagnetic compatibility of high-speed railway system with military facilities, civil equipment and aviation equipment has been a research hotspot in recent years. The electromagnetic disturbance of high-speed train to the external environment is one of the important factors that affect the electromagnetic compatibility of high-speed railway system with other systems. Equipment and devices including inverters, wireless communication devices, high-power electrical equipment and electrical connection cables as well as circuit boards are all sources of electromagnetic disturbance to the external environment of the train. The type test of the whole train was carried out after installation of all devices and cables. The rectification will waste a lot of manpower and material resources if external electromagnetic disturbance exceeds the standards. Hence, in this study, the influencing factors of external electromagnetic disturbance of high-speed train are analyzed to identify the source and propagation path. The peak of electromagnetic disturbance is extracted and identified by means of simulation, so as to propose an improvement scheme of electrical design. The effectiveness of the simulation analysis is verified through the vehicle test, which provides a guiding reference for the electrical design and manufacture of the high-speed train.